The GOES 7 weather satellite captured
the following color-enhanced infrared images of the
March 1993 storm. Increasing cloud density and cooler
temperatures are indicated as the colors change from
yellow, to red, to purple, to blue, to white. Think
about what is happening on the surface and how surface
weather maps of the region would change over the same
time period.

! Click
the image to see the animation. Use the controls to
step through the animation so you can observe the development,
movement, and dissipation of the storm system.

Satellite imagesDepartment of Atmospheric
Sciences,University of Illinois at Urbana-Champaign

3. What additional information would be
helpful in determining the center of the low-pressure
system?